Opera tries to install driver/service

I use ProcessGuard and the Opera browser. I've set Opera to allow access to physical memory which all browsers appear to need, but when I close opera I get a warning from PG that it tried to install a driver/service. I don't allow it to, and everything seems to work OK, but does anyone know what it's trying to do?

Hi aslan, I am not an opera user but I am sure others will reply with their settings for opera.
Can you please state which version of opera you are using and any addins or other associated opera utilities?

Thanks for all your suggestions. I will write to Opera and ask them why it wants to install a driver/service.

TheQuest, the paper by Andreas on this site does recommend giving Firefox physical memory access. I've noticed that all the browsers I've tried (IE, Firefox and Opera) do ask for it when run with PG. Anybody else tried running their browser without physical memory access? Any ill effects?